Docker container can't reach another container using hostname
add the IP to your /etc/hosts file within your my-php container:
(ip of your nginx container) myapp.dev
Should get the result you need.
example:
111.111.111.111 foo.bar.com
add the IP to your /etc/hosts file within your my-php container:
(ip of your nginx container) myapp.dev
Should get the result you need.
example:
111.111.111.111 foo.bar.com